*{margin: 0;padding: 0;box-sizing: border-box;}
body{background-color: #f6f6f6;}
img{display: block;}
ul{list-style: none;}
a{text-decoration: none;}
/*自定义样式*/
.flex{
    display: flex;
    display: -webkit-flex;
    flex-direction: row;
    -webkit-flex-direction:row;
    justify-content: space-between;
    -webkit-justify-content:space-between;
    align-items: center;
    -webkit-align-items:center;
}
.flex-y-around{
    justify-content: space-around;
    -webkit-justify-content:space-around;
}
.flex-y-end{
    justify-content: flex-end;
    -webkit-justify-content:flex-end;
}
.flex-y-start{
    justify-content: flex-start;
    -webkit-justify-content:flex-start;
}
.flex-y-center{
    justify-content: center;
    -webkit-justify-content:center;
}
.flex-y-around{
    justify-content: space-around;
    -webkit-justify-content:space-around;
}
.flex-inline{
    display: inline-flex;
    display: -webkit-inline-flex;
    flex-direction: column;
    -webkit-flex-direction:column;
    justify-content: center;
    -webkit-justify-content:center;
    align-items: center;
    -webkit-align-items:center;
}
.flex-inline-y{
    flex-direction: row;
    -webkit-flex-direction:row;
    justify-content: space-between;
    -webkit-justify-content:space-between;
}
.flex-inline-center{
    justify-content: center;
    -webkit-justify-content:center;
}
/********************************************/